Allegiance is the duty which a subject or citizen is widely expected to owe to the state to which he or she belongs.

Allegiance may also refer to:

Arts, entertainment, and media Games Allegiance (video game), a 2000 computer game originally by Microsoft Allegiance: War of Factions, a social/political collectible card game set in a medieval city-state undergoing political turmoil

Literature Allegiance (novel), a novel set in the Star Wars galaxy that was released in January 2007 by Del Rey Allegiance, a 2012 fantasy novel by Cayla Kluver and the second book in the Legacy series Allegiance, a 2015 historical legal thriller about Japanese-American internment in WWII, authored by law professor Kermit Roosevelt III

Music Allegiance (Australian band), a retired thrash metal band from Perth, Australia Allegiance (As Blood Runs Black album), the debut album of deathcore band As Blood Runs Black Allegiance (Firewind album), the fourth full-length album by Firewind "Allegiance", a song by Dimmu Borgir from their 2003 album Death Cult Armageddon

Television Allegiance (American TV series), an American remake of the Israeli TV series The Gordin Cell Allegiance (Canadian TV series), a 2024 drama television series "Allegiance" (The Copenhagen Test), a 2025 episode "Allegiance" (NCIS: Los Angeles), a 2014 episode "Allegiance" (Person of Interest), a 2014 episode "Allegiance" (Star Trek: The Next Generation), a 1990 episode "Allegiance" (Stargate SG-1), a 2002 episode

Other uses in arts, entertainment, and media Allegiance (film), a 2012 American film about the Iraq War Allegiance (musical), a 2012 musical about the Japanese American internment experience

Other uses Allegiance (company), a voice of customer and enterprise feedback management technology platform

See also Allegiant (disambiguation)